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#ifndef PARSE_H
#define PARSE_H
/*
* Basic parsing data structures. Statements and symbols.
*
* Copyright (C) 2003 Linus Torvalds, all rights reserved.
*/
#include "symbol.h"
enum expression_type {
EXPR_CONSTANT,
EXPR_SYMBOL,
EXPR_BINOP,
EXPR_DEREF,
EXPR_PREOP,
EXPR_POSTOP,
EXPR_CAST,
EXPR_SIZEOF,
EXPR_CONDITIONAL,
EXPR_STATEMENT,
};
struct expression {
int type, op;
struct token *token;
union {
struct expression *unop;
struct statement *statement;
struct symbol *symbol;
struct binop_arg {
struct expression *left, *right;
};
struct deref_arg {
struct expression *deref;
struct token *member;
};
struct cast_arg {
struct symbol *cast_type;
struct expression *cast_expression;
};
struct conditional_expr {
struct expression *conditional, *cond_true, *cond_false;
};
struct statement_struct {
struct symbol_list *syms;
struct statement_list *stmts;
};
};
};
enum statement_type {
STMT_NONE,
STMT_EXPRESSION,
STMT_COMPOUND,
STMT_IF,
STMT_RETURN,
STMT_BREAK,
STMT_CONTINUE,
STMT_CASE,
STMT_SWITCH,
STMT_FOR,
STMT_WHILE,
STMT_DO,
STMT_LABEL,
STMT_GOTO,
STMT_ASM,
};
struct statement {
int type;
struct token *token;
struct statement *next;
union {
struct label_arg {
struct token *label;
struct statement *label_statement;
};
struct expression *expression;
struct if_statement {
struct expression *if_conditional;
struct statement *if_true;
struct statement *if_false;
};
struct compound_struct {
struct symbol_list *syms;
struct statement_list *stmts;
};
struct labeled_struct {
struct token *label_identifier;
struct statement *label_statement;
};
struct case_struct {
struct expression *case_expression;
struct expression *case_to;
struct statement *case_statement;
};
struct switch_struct {
struct expression *switch_expression;
struct statement *switch_statement;
};
struct iteration_struct {
struct expression *e1, *e2, *e3;
struct statement *iterate;
};
struct goto_struct {
struct token *goto_label;
struct expression *goto_expression;
};
};
};
extern struct token *parse_expression(struct token *, struct expression **);
extern struct token *statement_list(struct token *, struct statement_list **);
extern void show_statement(struct statement *);
extern void show_statement_list(struct statement_list *, const char *);
extern void show_expression(struct expression *);
extern void translation_unit(struct token *, struct symbol_list **);
#endif /* PARSE_H */
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